Oil shale is a form of sedimentary rock that contains kerogen, which is released as a petroleum-like liquid when the rock is heated. Tar sands are a combination of clay, sand, water and bitumen, which ...

The object of their attention is oil shale, a rock so rich in an oil-like substance that certain pieces will ignite when held up to a flame. Piceance Creek runs through lands that are part of the ...

Shale drilling’s hot growth turned the U.S. into the world’s largest oil producer over the last decade. Now oil buried beneath the world’s oceans is expected to drive growth. Offshore ...

Oil shale is a form of sedimentary rock that contains kerogen, which is released as a petroleum-like liquid when the rock is heated. Tar sands are a combination of clay, sand, water and bitumen, which ...